RAMAN AMPLIFICATION

A product line of passive components and optical modules for Raman amplifier systems, developed by Oplink Communications Inc., includes isolators, polarization-maintaining beam combiners, wavelength division multiplexing (WDM) and fused-fiber pump combiners and WDM signal/pump combiners. The company says the components, which are Bellcore-compliant, provide high power handling and low optical insertion loss. Their design is suitable for ultralong-haul and long-haul DWDM optical networks.